Home / 16,209.60-22,369.68-9,135.60

Finding the Fourth Proportional to 16,209.60, 22,369.68 and 9,135.60

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Solution

The fourth proportional to 16,209.60, 22,369.68 and 9,135.60 is: 12,607.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,209.60 : 22,369.68 = 9,135.60 : x
  2. Step 2: Convert to fraction form
    16,209.60/22,369.68 = 9,135.60/x
  3. Step 3: Cross multiply
    16,209.60x = 22,369.68 × 9,135.60
  4. Step 4: Simplify right side
    16,209.60x = 204,360,448.61
  5. Step 5: Solve for x
    x = 204,360,448.61/16,209.60
  6. Step 6: Final answer
    x = 12,607.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.